Roman remains in Britain

This retitled gallery,shall in future,encompass all extant Roman remains,that I encounter on my travels in the UK.Whilst accepting,that for the foreseeable future,this will still be predominately be a Hadrian's Wall gallery,over time that will change to a general Roman gallery.

Thankyou for the email Ian, I've enjoyed looking at your images of Hadrian's Wall.
I see you met my friend Stuart, he's another accomplished photographer normally scooping up all the photography first place slots in the local agricultural show.
Are you coming back up to this area any time soon?
Joan

Ian,
Given the amount of Roman soldiers, the time spent and the amount of bricks used.
They only managed to lay two bricks per man per hour.
I was given that information many years ago by someone in the building trade who obviously was not impressed by the Romans.
Can you give me the correct facts regarding their brickie abilities.